Samson EB 8075 EN, Mounting And Operating Instructions

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EB 8075 EN 7-1
Operation
7 Operation
Immediately after completing start-up or put-
ting the valve back into operation, the valve
is ready for use.
Risk of burn injuries due to hot or cold com-
ponents and pipeline.
Valve components and the pipeline may be-
come very hot or cold. Risk of burn injuries.
Î
Allow components and pipelines to cool
down or warm up to the ambient tem-
perature.
Î
Wear protective clothing and safety
gloves.
Risk of personal injury due to pressurized
components and process medium being
discharged.
Î
Do not loosen the screw of the test con-
nection while the valve is pressurized.
Risk of hearing loss or deafness due to loud
noise.
Noise emission (e.g. cavitation or flashing)
may occur during operation caused by the
process medium and the operating
conditions. Additionally, a loud noise may
briefly occur through the sudden venting of
the pneumatic actuator or pneumatic valve
accessories not fitted with noise-reducing
fittings. Both can damage hearing.
Î
Wear hearing protection when working
near the valve.
Crush hazard arising from moving parts
(actuator and piston stem).
Î
Do not insert hands or finger into the
yoke while the air supply is connected to
the actuator.
Î
Before working on the control valve,
disconnect and lock the pneumatic air
supply as well as the control signal.
Î
Do not impede the movement of the
actuator and piston stem by inserting
objects into the yoke.
Î
Before unblocking the actuator and
piston stem after they have become
blocked (e.g. due to seizing up after
remaining in the same position for a
long time), release any stored energy in
the actuator (e.g. spring compression).
See associated actuator documentation.
Risk of personal injury due to exhaust air
being vented.
While the valve is operating, air is vented
from, for example, the actuator during
closed-loop operation or when the valve
opens or closes.
Î
Wear eye protection when working in
close proximity to the control valve.
WARNING !
WARNING !
WARNING !
WARNING ! WARNING !
WARNING ! WARNING !